I just remembered Naru's confession to Keitaro at the end of Love Hina: Again...
After the whole disaster...Naru has finally found the courage to tell her true feelings for Keitaro...
...then their friends suddenly show up to spoil the moment... XD

My favorite would be Moe Kare!! when Arata keeps confessing to Hikaru seriously.

two thumbs-up moe kare!!~_~ arata's confession is really embarassing yet its romatic! arata is so damn funny when he confessed to hiyoko in front of many students. for me its so embarassing...but to think of it its cute... i like the line of arata when he chased hiyoko: "hey! stupid hiyoko! let the person be finished when he was confessing to you...."*sort of like this...i really can't remember the line... :P*...

My favorite would be Moe Kare!! when Arata keeps confessing to Hikaru seriously.

two thumbs-up moe kare!!~_~ arata's confession is really embarassing yet its romatic! arata is so damn funny when he confessed to hiyoko in front of many students. for me its so embarassing...but to think of it its cute... i like the line of arata when he chased hiyoko: "hey! stupid hiyoko! let the person be finished when he was confessing to you...."*sort of like this...i really can't remember the line... :P*...